Her Majesty The Queen turns 90 today! To celebrate, Twitter is using two(!) hashtags to mark the occasion #Queenat90 and the very fitting #HappyBirthdayYourMajesty.

Tributes have been pouring in from fans of the Monarch all around the globe and the official British Monarchy Twitter account (@BritishMonarchy) has been sharing some special photographs to commemorate the occasion.

BUT! We just wanted to bring back that one (and only) time Her Majesty tweeted about the opening of the Information Age exhibition at London's Science Museum:

It is a pleasure to open the Information Age exhibition today at the @ScienceMuseum and I hope people will enjoy visiting. Elizabeth R.